72623549 has 8 divisors (see below), whose sum is σ = 73519680. Its totient is φ = 71731296.

The previous prime is 72623543. The next prime is 72623561. The reversal of 72623549 is 94532627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72623549 - 2⁴ = 72623533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72623543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55697 + ... + 56985.

It is an arithmetic number, because the mean of its divisors is an integer number (9189960).

Almost surely, 2^72623549 is an apocalyptic number.

It is an amenable number.

72623549 is a deficient number, since it is larger than the sum of its proper divisors (896131).

72623549 is a wasteful number, since it uses less digits than its factorization.

72623549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939.

The product of its digits is 90720, while the sum is 38.

The square root of 72623549 is about 8521.9451418089. The cubic root of 72623549 is about 417.2142718510.

The spelling of 72623549 in words is "seventy-two million, six hundred twenty-three thousand, five hundred forty-nine".